Foto N. Afrati Rada Chirkova Manolis Gergatsoulis Benny Kimelfeld Vassia Pavlaki Yehoshua Sagiv On rewriting XPath queries using views. 168-179 2009 EDBT http://doi.acm.org/10.1145/1516360.1516381 conf/edbt/2009 db/conf/edbt/edbt2009.html#AfratiCGKPS09